A Pulley as a Simple Machine
Data Table
the lab
Apparatus A
Sample Calculations:
Weight lifted:
Work by pulley:
Work by me:
Apparatus B
Apparatus C
Efficiency & Mechanical Advantage
Sample Calculations:
Efficiency:
Mechanical Advantage:
Analysis & Conclusions:
1. How can you tell the mechanical advantage of a pulley system,
just by looking?
2. What can you say about the efficiency of your pulleys?
last update February 27, 2003 by
JL Stanbrough